Product Specifications
| Parameter |
Details |
| Model NO. |
LB4UU |
| Load Direction |
Radial Bearing |
| Style |
Without Outer Ring, Without Inner Ring |
| Material |
Bearing Steel |
| Type |
Closed |
| Product Name |
Needle Roller Bearing |
| Lubrication |
Grease or Oil |
| Precision Rating |
P0, P6, P5, P4, P2 |
| Clearance |
C0, C3, C4 |
| Delivery Time |
3-7 days |
| Service |
OEM, ODM |
| Transport Package |
Carton, Pallet |
| Origin |
China |
| HS Code |
8482102000 |
Application Industries
| Industry |
Typical Equipment |
| Industrial Machinery |
CNC Machines, Gearboxes, Conveyors, Printing Equipment |
| Automotive |
Transmission Systems, Steering Components |
| Agricultural Machinery |
Tractors, Harvesters, Tillers |
| Home Appliances |
Washing Machines, Air Conditioners |
| New Energy |
Wind Turbine Components, Solar Tracking Systems |
Reduce Downtime with High Precision LB4UU-LB8UU Needle Roller Bearings for Industrial Machinery
Industrial machinery operators know the cost of unexpected downtime—whether from premature bearing failure, mismatched precision, or long lead times for replacement parts. When a needle roller bearing fails in critical equipment like CNC machines or conveyors, production stops, maintenance costs rise, and deadlines slip. Sourcing reliable, high-precision bearings that meet exact specifications often means navigating limited MOQs or uncertain quality from uncertified suppliers.
High Precision Needle Roller Bearings Engineered for Industrial Reliability
Our LB4UU, LB5UU, LB6UU, and LB8UU Needle Roller Bearings address these challenges with precision grades from P0 to P4 and noise grades up to Z4, ensuring compatibility with demanding industrial applications. As a professional bearing manufacturer with over 18 years of export experience, we offer flexible order policies—including 1 piece MOQ for standard bearings—and sample delivery within 3-5 working days, so you can test fit before committing to bulk orders. Whether you need bearings for machine tools, textile machinery, or packaging equipment, our products are designed to minimize vibration, reduce wear, and extend equipment lifespan.
Optimal Performance in Demanding Industrial Conditions
These needle roller bearings excel in applications requiring high radial load capacity in compact spaces—ideal for gearboxes, printing presses, and agricultural machinery. Constructed from high-grade bearing steel, they withstand continuous operation under heavy loads, while closed-end design protects against contaminants in dusty or humid environments. With lubrication options for grease or oil, they adapt to varying speed requirements, ensuring stable performance in temperatures ranging from -30°C to 120°C. Choosing the right needle roller bearing directly impacts equipment efficiency; undersized or low-precision bearings lead to increased energy consumption and frequent replacements.
Technical Specifications That Drive Performance
Precision rating is critical for industrial machinery: P0 grade suits general applications, while P4 grade meets the tight tolerance needs of CNC spindles and high-speed conveyors. Clearance grades (C0, C3, C4) ensure proper fit—C3 and C4 options accommodate thermal expansion in high-temperature equipment, preventing seizure. The closed design eliminates the need for additional seals, reducing installation complexity and maintenance time. Dynamic load ratings, optimized through advanced manufacturing processes, ensure these bearings handle cyclic loads without premature fatigue, directly contributing to longer service intervals and lower total cost of ownership.
Why Compromising on Bearing Quality Costs More
Low-quality needle roller bearings may save on initial cost, but they often fail within months, causing unplanned downtime. A single hour of production loss in automotive or manufacturing facilities can exceed the price of 10 premium bearings. Our products undergo strict incoming material inspection and full-process quality control, meeting ISO 9001:2015 standards. Every bearing is tested for dimensional accuracy, noise, and vibration before shipment, ensuring consistency batch after batch. Unlike counterfeit bearings, which lack traceability, our bearings come with full documentation, so you can verify compliance with your equipment’s specifications.
Why Global Buyers Choose Saifan Bearings
With a factory equipped with automated production lines and an in-house laboratory, we control every step of manufacturing—from raw material selection to final testing. Our technical R&D team supports OEM/ODM customization, adjusting dimensions or housing designs to match customer drawings. We serve over 50 countries across Europe, North America, and Southeast Asia, with a 12-month warranty on all products. For defective items, we offer free replacements with your next order or direct refunds. Our professional engineers provide free guidance on selection, installation, and maintenance, helping you optimize bearing performance and reduce inventory costs.
Packaging & Shipping
- Standard packaging: Individual carton boxes with product labels, secured on pallets for bulk orders
- Sample orders ship within 3-5 working days; bulk orders within 5-15 working days
- Logistics options: DHL, FedEx, UPS, or sea freight—tailored to your delivery timeline
- Real-time tracking provided once shipment is dispatched
- Minimum order quantity: 1 piece for standard bearings, with customized quantities negotiable
Get Your LB Series Needle Roller Bearings Today
Don’t let equipment downtime affect your production schedule. Whether you need LB4UU, LB5UU, LB6UU, or LB8UU bearings, we have the inventory and expertise to fulfill your order quickly. Send us your bearing model, application details, and quantity, and our team will provide a quote within 24 hours. With free samples available for distributors (freight cost covered by customer), you can confirm fit and performance before placing a bulk order.
Frequently Asked Questions
Q: Are these needle roller bearings genuine and traceable?
A: Yes, all our bearings are manufactured in our Jinan factory and come with full traceability documentation. We are ISO 9001:2015 and ISO 14001 certified, ensuring compliance with international quality standards.
Q: How do I confirm if the LB series is compatible with my equipment?
A: Provide your equipment model, operating conditions (load, speed, temperature), and required dimensions. Our technical team will verify compatibility and recommend the optimal precision and clearance grade.
Q: What is your warranty policy for these bearings?
A: We offer a 12-month warranty from the date of delivery. Defective products due to manufacturing issues will be replaced free of charge or refunded, at your option.
Q: Can I order a single sample for testing?
A: Yes, sample orders have no MOQ. For standard bearings, you can order 1 piece to test fit and performance before placing a bulk order.
Q: What shipping options are available for urgent orders?
A: For urgent needs, we offer express shipping via DHL, FedEx, or UPS, with delivery in 3-7 days. Sea freight is available
Quality Assurance
100% Inspection
High-grade chrome steel, raw material QC, full-process monitoring, ISO/ABMA/DIN compliance.
Delivery
3-15 Days
Samples in 3-5 days, bulk orders 5-15 days. Free samples for distributors (freight collect).
Customization
Full OEM/ODM
P0-P4 precision grades, Z2-Z3-Z4 noise levels. Custom drawings welcome.
After-Sales
12-Month Warranty
Professional technical guidance and failure solutions from our R&D team.
